Orbit Controls
Video Lecture
Description
Orbit controls allow the camera to orbit around a target.
Start Code
./src/server/server.ts
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30 | import express from "express"
import path from "path"
import http from "http"
const port: number = 3000
class App {
private server: http.Server
private port: number
constructor(port: number) {
this.port = port
const app = express()
app.use(express.static(path.join(__dirname, '../client')))
app.use('/build/three.module.js', express.static(path.join(__dirname, '../../node_modules/three/build/three.module.js')))
app.use('/jsm/controls/OrbitControls', express.static(path.join(__dirname, '../../node_modules/three/examples/jsm/controls/OrbitControls.js')))
app.use('/jsm/libs/stats.module', express.static(path.join(__dirname, '../../node_modules/three/examples/jsm/libs/stats.module.js')))
this.server = new http.Server(app);
}
public Start() {
this.server.listen(this.port, () => {
console.log( `Server listening on port ${this.port}.` )
})
}
}
new App(port). Start()
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./src/client/client.ts
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89 | // If using Relative Import References
import * as THREE from '/build/three.module.js'
import { OrbitControls } from '/jsm/controls/OrbitControls'
import Stats from '/jsm/libs/stats.module'
// If using Module Specifiers
//import * as THREE from 'three'
//import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
//import Stats from 'three/examples/jsm/libs/stats.module'
const scene: THREE.Scene = new THREE.Scene()
const axesHelper = new THREE.AxesHelper(5)
scene.add(axesHelper)
var light = new THREE.HemisphereLight();
scene.add(light);
const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000)
const renderer: THREE.WebGLRenderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
//controls.addEventListener('change', () => console.log("Controls Change")) //this line is unnecessary if you are already re-rendering within the animation loop
//controls.addEventListener('start', () => console.log("Controls Start Event"))
//controls.addEventListener('end', () => console.log("Controls End Event"))
// controls.autoRotate = true
// controls.autoRotateSpeed = 10
//controls.enableDamping = true
//controls.dampingFactor = .01
// controls.enableKeys = true
// controls.keys = {
// LEFT: 37, //left arrow
// UP: 38, // up arrow
// RIGHT: 39, // right arrow
// BOTTOM: 40 // down arrow
// }
// controls.mouseButtons = {
// LEFT: THREE.MOUSE.ROTATE,
// MIDDLE: THREE.MOUSE.DOLLY,
// RIGHT: THREE.MOUSE.PAN
// }
// controls.touches = {
// ONE: THREE.TOUCH.ROTATE,
// TWO: THREE.TOUCH.DOLLY_PAN
// }
//controls.screenSpacePanning = true
//controls.minAzimuthAngle = 0
//controls.maxAzimuthAngle = Math.PI / 2
//controls.minPolarAngle = Math.PI / 2
//controls.maxPolarAngle = Math.PI - (Math.PI / 2)
// controls.maxDistance = 4;
// controls.minDistance = 2;
const geometry: THREE.BoxGeometry = new THREE.BoxGeometry()
const material: THREE.MeshBasicMaterial = new THREE.MeshBasicMaterial({ color: 0x00ff00, wireframe: true })
const cube: THREE.Mesh = new THREE.Mesh(geometry, material)
scene.add(cube)
camera.position.z = 2
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
render()
}
const stats = Stats()
document.body.appendChild(stats.dom)
var animate = function () {
requestAnimationFrame(animate)
controls.update()
render()
stats.update()
};
function render() {
renderer.render(scene, camera)
}
animate();
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./src/client/tsconfig.json
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16 | {
"compilerOptions": {
"target": "ES6",
"module": "ES6",
"outDir": "../../dist/client",
"baseUrl": ".",
"paths": {
"/build/three.module.js": ["../../node_modules/three/src/Three"],
"/jsm/*": ["../../node_modules/three/examples/jsm/*"],
},
"moduleResolution": "node"
},
"include": [
"**/*.ts"
]
}
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Useful Links
KeyCodes
Azimuth
